:root{--bg:#1b1c1f;--bg-elevated:#232428;--bg-sunken:#131417;--text:#e8e8ea;--text-dim:#9a9ba3;--border:#34353a;--accent:#4d8dff;--accent-text:#fff;--checker-a:#202124;--checker-b:#1a1b1e;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;color:var(--text);background:var(--bg);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font:14px/1.4 -apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{overflow:hidden}button{font:inherit;color:inherit}input[type=range]{accent-color:var(--accent)}.app{flex-direction:column;height:100%;display:flex}.app-header{border-bottom:1px solid var(--border);flex:none;padding:10px 16px}.app-header h1{letter-spacing:.02em;color:var(--text);margin:0;font-size:14px;font-weight:600}.app-body{flex:auto;min-height:0;display:flex}.stage-frame{background-color:var(--checker-a);background-image:linear-gradient(45deg, var(--checker-b) 25%, transparent 25%), linear-gradient(-45deg, var(--checker-b) 25%, transparent 25%), linear-gradient(45deg, transparent 75%, var(--checker-b) 75%), linear-gradient(-45deg, transparent 75%, var(--checker-b) 75%);background-position:0 0,0 12px,12px -12px,-12px 0;background-size:24px 24px;flex:auto;justify-content:center;align-items:center;min-width:0;padding:24px;display:flex;position:relative;overflow:hidden}.stage-img{width:auto;max-width:100%;height:auto;max-height:100%;display:block;box-shadow:0 4px 24px #0006}.overlay-stack{pointer-events:none;position:absolute}.overlay-svg{display:block;position:absolute;inset:0;overflow:hidden}.stage-status{color:var(--text-dim);font-size:14px}.dropzone{cursor:pointer;border:2px dashed var(--border);text-align:center;color:var(--text-dim);border-radius:10px;padding:48px 32px;transition:border-color .15s,color .15s,background .15s}.dropzone:hover,.dropzone:focus-visible{border-color:var(--accent);color:var(--text);outline:none}.dropzone--active{border-color:var(--accent);color:var(--text);background:#4d8dff14}.dropzone-title{color:var(--text);margin:0 0 4px;font-size:15px;font-weight:500}.dropzone-subtitle{margin:0;font-size:13px}.dropzone--compact{text-align:left;border-radius:6px;padding:10px 12px;font-size:12.5px}.control-panel{border-left:1px solid var(--border);background:var(--bg-elevated);flex-direction:column;flex:0 0 300px;gap:20px;width:300px;padding:16px;display:flex;overflow-y:auto}.control-section{flex-direction:column;gap:10px;display:flex}.control-section-title{text-transform:uppercase;letter-spacing:.06em;color:var(--text-dim);margin:0;font-size:11px;font-weight:600}.control-hint{color:var(--text-dim);margin:0;font-size:12.5px}.control-error{color:#e0392c;margin:0;font-size:12.5px}.chip-group{flex-wrap:wrap;gap:6px;display:flex}.chip{cursor:pointer;border:1px solid var(--border);background:var(--bg-sunken);color:var(--text);border-radius:999px;padding:6px 12px;font-size:12.5px;transition:border-color .15s,background .15s}.chip:hover:not(:disabled){border-color:var(--accent)}.chip:disabled{opacity:.45;cursor:not-allowed}.chip--active{background:var(--accent);border-color:var(--accent);color:var(--accent-text)}.overlay-controls{border:1px solid var(--border);background:var(--bg-sunken);border-radius:8px;flex-direction:column;gap:8px;padding:10px 12px;display:flex}.overlay-controls+.overlay-controls{margin-top:-2px}.overlay-controls-header{justify-content:space-between;align-items:center;display:flex}.overlay-controls-title{font-size:12.5px;font-weight:600}.overlay-controls-row{flex-wrap:wrap;align-items:center;gap:6px;display:flex}.overlay-controls-sliders{flex-direction:column;align-items:stretch;gap:6px}.icon-btn{cursor:pointer;border:1px solid var(--border);background:var(--bg-elevated);width:26px;height:26px;color:var(--text);border-radius:6px;justify-content:center;align-items:center;padding:0;font-size:14px;line-height:1;display:inline-flex}.icon-btn:hover{border-color:var(--accent)}.icon-btn--active{background:var(--accent);border-color:var(--accent);color:var(--accent-text)}.multiplicity-group{gap:4px;display:flex}.swatch-group{gap:6px;margin-left:auto;display:flex}.swatch{cursor:pointer;border:1px solid var(--border);border-radius:50%;width:20px;height:20px;padding:0}.swatch--active{outline:2px solid var(--accent);outline-offset:2px}.slider-label{color:var(--text-dim);align-items:center;gap:8px;font-size:12px;display:flex}.slider-label input[type=range]{flex:1}.btn-reset{cursor:pointer;border:1px solid var(--border);background:var(--bg-sunken);width:100%;color:var(--text);border-radius:6px;padding:8px;font-size:12.5px}.btn-reset:hover:not(:disabled){border-color:var(--accent)}.btn-reset:disabled{opacity:.4;cursor:not-allowed}@media (width<=720px){.app-body{flex-direction:column}.control-panel{border-left:none;border-top:1px solid var(--border);flex:none;width:100%;max-height:45%}.stage-frame{flex:auto;min-height:0}}